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| 1 <!-- | |
| 2 Copyright (c) 2009 The Chromium Authors. All rights reserved. | |
| 3 Use of this source code is governed by a BSD-style license that can be | |
| 4 found in the LICENSE file. | |
| 5 --> | |
| 6 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" | |
| 7 "http://www.w3.org/TR/html4/loose.dtd"> | |
| 8 <html> | |
| 9 <head> | |
| 10 <title>WebGL the minimum number of uniforms are supported.</title> | |
| 11 <link rel="stylesheet" href="../resources/js-test-style.css"/> | |
| 12 <script src="../resources/js-test-pre.js"></script> | |
| 13 <script src="resources/webgl-test.js"> </script> | |
| 14 <script src="resources/webgl-test-utils.js"> </script> | |
| 15 </head> | |
| 16 <body> | |
| 17 <canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></c
anvas> | |
| 18 <div id="description"></div> | |
| 19 <div id="console"></div> | |
| 20 <script id="vshader" type="x-shader/x-vertex"> | |
| 21 #define NUM_UNIFORMS 128 // See spec | |
| 22 attribute vec4 vPosition; | |
| 23 uniform vec4 uni[NUM_UNIFORMS]; | |
| 24 varying vec4 color; | |
| 25 void main() | |
| 26 { | |
| 27 gl_Position = vPosition; | |
| 28 vec4 c = vec4(0,0,0,0); | |
| 29 for (int ii = 0; ii < NUM_UNIFORMS; ++ii) { | |
| 30 c += uni[ii]; | |
| 31 } | |
| 32 color = c; | |
| 33 } | |
| 34 </script> | |
| 35 | |
| 36 <script id="fshader" type="x-shader/x-fragment"> | |
| 37 #ifdef GL_ES | |
| 38 precision mediump float; | |
| 39 #endif | |
| 40 varying vec4 color; | |
| 41 void main() | |
| 42 { | |
| 43 gl_FragColor = color; | |
| 44 } | |
| 45 </script> | |
| 46 <script id="vshader2" type="x-shader/x-vertex"> | |
| 47 attribute vec4 vPosition; | |
| 48 void main() | |
| 49 { | |
| 50 gl_Position = vPosition; | |
| 51 } | |
| 52 </script> | |
| 53 | |
| 54 <script id="fshader2" type="x-shader/x-fragment"> | |
| 55 #ifdef GL_ES | |
| 56 precision mediump float; | |
| 57 #endif | |
| 58 #define NUM_UNIFORMS 16 // See spec | |
| 59 uniform vec4 uni[NUM_UNIFORMS]; | |
| 60 void main() | |
| 61 { | |
| 62 vec4 c = vec4(0,0,0,0); | |
| 63 for (int ii = 0; ii < NUM_UNIFORMS; ++ii) { | |
| 64 c += uni[ii]; | |
| 65 } | |
| 66 gl_FragColor = vec4(c.r, c.g, c.b, c.a / 120.0); | |
| 67 } | |
| 68 </script> | |
| 69 <script> | |
| 70 var wtu = WebGLTestUtils; | |
| 71 var canvas = document.getElementById("example"); | |
| 72 var gl = wtu.create3DContext(canvas); | |
| 73 var program = wtu.setupTexturedQuad(gl); | |
| 74 | |
| 75 //------------------------------------------------------------------------------ | |
| 76 var program = wtu.setupProgram( | |
| 77 gl, | |
| 78 [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER), | |
| 79 wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)], | |
| 80 ['vPosition'], [0]); | |
| 81 | |
| 82 for (var ii = 0; ii < 128; ++ii) { | |
| 83 var loc = gl.getUniformLocation(program, "uni[" + ii + "]"); | |
| 84 gl.uniform4f(loc, 2/256, 2/512, 2/1024, ii/8128); | |
| 85 } | |
| 86 | |
| 87 wtu.drawQuad(gl); | |
| 88 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 89 wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [255, 127, 64, 255],
"Should render 255,127,64,32 (+/-1)", 1); | |
| 90 | |
| 91 //------------------------------------------------------------------------------ | |
| 92 var program = wtu.setupProgram( | |
| 93 gl, | |
| 94 [wtu.loadShaderFromScript(gl, 'vshader2', gl.VERTEX_SHADER), | |
| 95 wtu.loadShaderFromScript(gl, 'fshader2', gl.FRAGMENT_SHADER)], | |
| 96 ['vPosition'], [0]); | |
| 97 | |
| 98 for (var ii = 0; ii < 16; ++ii) { | |
| 99 var loc = gl.getUniformLocation(program, "uni[" + ii + "]"); | |
| 100 gl.uniform4f(loc, 16/2048, 16/1024, 16/512, ii); | |
| 101 } | |
| 102 | |
| 103 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 104 wtu.drawQuad(gl); | |
| 105 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); | |
| 106 wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [32, 64, 127, 255], "
Should render 32,64,127,255 (+/-1)", 1); | |
| 107 | |
| 108 successfullyParsed = true; | |
| 109 | |
| 110 </script> | |
| 111 </body> | |
| 112 <script src="../resources/js-test-post.js"></script> | |
| 113 | |
| 114 <script> | |
| 115 </script> | |
| 116 | |
| 117 </body> | |
| 118 </html> | |
| 119 | |
| 120 | |
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Chromium Code Reviews
Issue 9360034:
Remove everthing except conformance tests in the deps/third_party/webgl (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/